Ultimate Guard Sidewinder 100+ Deck Case: Xenoskin Black

Built to Carry Your Best Deck — Every Single Time

The Ultimate Guard Sidewinder 100+ in Xenoskin Black is the kind of deck box that earns a permanent spot in your bag. Xenoskin is Ultimate Guard's signature soft-touch leatherette material — it has a premium matte feel in hand, resists scuffs and everyday wear, and looks genuinely sharp across the table. This isn't a box you grab because it was cheap. It's the one you reach for because you trust it.

Capacity That Covers Your Full Build

The Sidewinder 100+ is engineered to hold 100 double-sleeved cards or 120 single-sleeved cards — making it a natural fit for Commander players and anyone who runs a full 100-card build with the added protection of double-sleeving. Double-sleeve compatibility is confirmed and front-of-mind in this box's design, so your inner and outer sleeves won't be fighting for space.

Closure and Access Done Right

The Sidewinder's defining feature is its side-opening design with a secure magnetic closure — the lid swings open horizontally, giving you clean, intuitive access to your deck without flipping the box upside down or awkwardly prying at a top lid. The magnetic snap is firm and consistent, meaning cards aren't spilling in your bag between rounds. A built-in thumb notch makes pulling your deck out smooth and natural, which matters more than it sounds when you're setting up between games.

Who Reaches for the Sidewinder

This box is built for the serious Commander player who double-sleeves their deck and wants a daily carry that looks as good as it functions. It's equally at home with a competitive Standard or Modern build where reliability at a tournament matters. If you're putting together a gift for a player who takes their cards seriously, a Xenoskin Sidewinder in black is a confident choice — it's a box that reads premium the moment it comes out of the bag. Ultimate Guard's build quality is well-regarded in the community for a reason, and the Sidewinder line is one of their flagship formats.

Specifications